function zhuanhua(n){
  // console.log(num)
    n=n.toString();
  var part=n.split('');
 
  //console.log(nums)
// var type=typeof(num);
  //return type;
  // for (var i = Num.length - 1; i >= 0; i--) {
  //   Num = Num.replace(",", "")//替换Num中的“,”
  //   Num = Num.replace(" ", "")//替换Num中的空格
  // }
  // if (isNaN(Num)) { //验证输入的字符是否为数字
  //   //alert("请检查小写金额是否正确");
   
  //   return;
  //   console.log('aaa')
  // }
  //字符处理完毕后开始转换，采用前后两部分分别转换
  //var part = String(Num).split(".");
  var newchar = "";
  //小数点前进行转化
  for (var i = part.length - 1; i >= 0; i--) {
    // if (part[0].length > 10) {
    //   console.log("位数过大，无法计算");
    //   return "";
    // }
    //若数量超过拾亿单位，提示
    var tmpnewchar = ""
    var perchar = part[i];
    //console.log('perchar',perchar)
    switch (perchar) {
      case "0": tmpnewchar = "零" + tmpnewchar; break;
      case "1": tmpnewchar = "一" + tmpnewchar; break;
      case "2": tmpnewchar = "二" + tmpnewchar; break;
      case "3": tmpnewchar = "三" + tmpnewchar; break;
      case "4": tmpnewchar = "四" + tmpnewchar; break;
      case "5": tmpnewchar = "五" + tmpnewchar; break;
      case "6": tmpnewchar = "六" + tmpnewchar; break;
      case "7": tmpnewchar = "七" + tmpnewchar; break;
      case "8": tmpnewchar = "八" + tmpnewchar; break;
      case "9": tmpnewchar = "九" + tmpnewchar; break;
    }
    switch (part.length - i - 1) {
      case 0: tmpnewchar = tmpnewchar; break;
      case 1: if (perchar != 0) tmpnewchar = tmpnewchar + "十"; break;
      case 2: if (perchar != 0) tmpnewchar = tmpnewchar + "百"; break;
      case 3: if (perchar != 0) tmpnewchar = tmpnewchar + "千"; break;
      case 4: tmpnewchar = tmpnewchar + "万"; break;
      case 5: if (perchar != 0) tmpnewchar = tmpnewchar + "十"; break;
      case 6: if (perchar != 0) tmpnewchar = tmpnewchar + "百"; break;
      case 7: if (perchar != 0) tmpnewchar = tmpnewchar + "千"; break;
      case 8: tmpnewchar = tmpnewchar + "亿"; break;
      case 9: tmpnewchar = tmpnewchar + "十"; break;
    }
    newchar = tmpnewchar + newchar;
  }
  //替换所有无用汉字，直到没有此类无用的数字为止
  while (newchar.search("零零") != -1 || newchar.search("零亿") != -1 || newchar.search("亿万") != -1 || newchar.search("零万") != -1) {
    newchar = newchar.replace("零亿", "亿");
    newchar = newchar.replace("亿万", "亿");
    newchar = newchar.replace("零万", "万");
    newchar = newchar.replace("零零", "零");
  }
  //替换以“一十”开头的，为“十”
  if (newchar.indexOf("一十") == 0) {
    newchar = newchar.substr(1);
  }
  //替换以“零”结尾的，为“”
  if (newchar.lastIndexOf("零") == newchar.length - 1) {
    newchar = newchar.substr(0, newchar.length - 1);
  }

  //console.log(newchar)
  return newchar;
}
module.exports={
  zhuanhua:zhuanhua
}